Malicious PDF — malware analysis report

Static analysis result for SHA-256 94c5e57e8e140690…

MALICIOUS

PDF

45.6 KB Created: 2020-08-01 23:41:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 584b8bcea96ef9d564b7cadcbde7f870 SHA-1: 7510b72fe8580a3e0bf59bca5904bbcebe0234cd SHA-256: 94c5e57e8e140690fc540e0c55c5f25b223bb97ddb8e841a3f1a177a9226795e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, indicating a link farm or SEO manipulation tactic. One of these links, https://ttraff.ru/pify?keyword=the+jig+is+up+lyrics, redirects to known malicious infrastructure. The document body itself is largely unreadable binary data, but the presence of the malicious redirector URL is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.ru/pify?keyword=the+jig+is+up+lyrics In PDF document text
    • http://files.remeretreats.org/uploads/1/3/2/3/132303019/jewako.pdfIn PDF document text
    • http://files.trytank.org/uploads/1/3/0/9/130969986/votavivuzete_dadonorafe.pdfIn PDF document text
    • http://files.hartshillandharpfieldsra.org/uploads/1/3/0/7/130776150/1185917.pdfIn PDF document text
    • http://files.ajcookfans.com/uploads/1/3/0/7/130775403/folusaval.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7250/4483/files/99724532075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9232/0161/files/29361558083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6055/2085/files/polufilumixerezewuzebo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/78491346320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8163/8812/files/jupodelexojipuvomozu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4976/3494/files/70540429615.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4261/9035/files/84204855421.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3282/7288/files/38431394512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5037/6100/files/66562651161.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8447/8632/files/darujodubu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6645/8265/files/gimuxajumas.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D7E 5112 bytes
SHA-256: f88087349017b70f441bbe4e3030f70bb8135cca1e0dfc83616e7d24305d1b2e
font_01_sfnt_off00007ef6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EF6 13400 bytes
SHA-256: 425f66cf5c9b4c0e5466def3ce7dd915f589f55a816de4a8c0df9b9a1cb0aaa6

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